nuAcuioi'tJDA. 56 



ly. TkKKHHATCMNA lUAlKirrLATA. 



Shell nii}:iiliuly oviiti-, (h-prcssfd, riuliiitcly ril)l)C(I ; ribs t-lc- 

 vaicd, nnfiular, irief^iiliirly fiisciculatc<l ; lu-ak tii|)t'riiifr ; front 

 tniiiriitnl ; cars sliort. Loii. -1 lines. 



'IVri'bnituliiui iiuriciiluta, D'Orb. lS-17, 'I'vr. Cre't. iv. p. ')S. 



1)1. 502. f. li-7 (not Rniner). 

 Tcrclirutuliiia hiauriculiita, D'Orb. Prod. ii. j). So. 

 TiTrhratulina striata, Wdhl. var. ? 

 Fossil. Xeocomian. France. 



20. Tkrebr.\tulina Flouidaxa. 



She// subpcntacronnl. with oljscure rmliatinj; stria* ; valves 

 slightly hiplicated ; beak prodiieetl, straight ; foramen small. 

 Lon. 7i. Int. (ij lines. 



Terebratula Fioridana, Morton, \S34, Sijn.Cret. p. 7''2. pi. l(i. f. 7- 

 Terel)ratulina Floridana, D'Orb. Prod. ii. p. 258. 

 Fossil. Chalk. Alabama, U.S. 



21. TEREnRATULINA GRACILIS. 



Shell orbicular, striated ; dorsal valve flat or concave ; ventral 

 valve conve.x ; beak small, recmTcd ; foramen small ; d<'lti(lium 

 rudimentary; ears small; striir fine, very variable in number 

 (IS-oOi, granulated, augmenting in number by the intercalation 

 of smaller ribs towards the margin. Lon. 5\, lat. 5, alt. 2 lines. 

 Terebratulites gracilis, Schl. ISI.'J, Leonh. Mia. Tasch. \ii. p. 112. 



t. .J. f. :i ; Petref. p. 270. no. 35, 1S20. 

 Terebratula gracilis, Schl. 1832, Petref. 



Biu-h, Mem. Soc. Ge'ol. France, 1st ser. iii. p. 1 G7-pl- 16. f. 11 . 

 Geinitz, Petref. Kreid. pi. 16. f. 13 ; Grundriss Verst. pi. 21 . 



f. 10. 

 Reiiss, Bohem. Kreid. p. 49. pi. 26. f. 1, pi. 42. f. 24. 

 Puqqaard. Bull. Soc. Ge'ol. France, vii. p. 534. 

 Quenst. Uandh. p. 462. t. 37 f. 8, 9. 

 Terebratulina craeilis, D'Orb. in Miirch. Russia, ii. p. 499. pi. 43. 

 f. 24-26 ; fer. Cret. iv. p. 61. t. 503. f. 1-6. 

 Dav. Mon. Cret. p. '3S. pi. 2. f. 13-16. 

 Terebratula ornata, Rcemer, 1840, Nord. Kreid. ]). 40. no. 26 



pi. 7. f. 10. 

 Terebratulina ornata, D'Orb. Prod. ii. p. 25^^. 

 Terebratula risrida, Sowerhij, \S29, Min. Cow.vi. p. 69. pi. 53().f. 2. 



Dav. Mon. Cret. pi. 2. f. 17- 

 Fossil. Chalk. England ; Belgium ; France ; Germany ; Russia. 



22. Terebratulina? BouRGEOisii. 



Shell minute, orbicular, depressed, radiately striated ; striae 

 smooth, curved, diverging towards the sides ; ventral valve con- 



